门静脉周围晕是指增强CT影象中门静脉或亚段门静脉周围的环形低密度区。作者复习了3777例腹部增强CT影象,并对照了临床与实验室检查,经皮或手术活检结果后指出,门静脉周围晕可能是肝门三联(门静脉、肝动脉与胆管)周围疏松结缔组织内增多的液体或扩张的淋巴管。由于约80％的肝内淋巴经肝段淋巴管引流至肝门区,肝门肿物可 Periventricular halo refers to the enhanced CT image of the portal vein or sub-portal vein around the low-density ring area. The authors reviewed 3,777 abdominal enhanced CT images and compared clinical and laboratory tests. Percutaneous or surgical biopsy results indicate that peripheral peripancreatic pockets may be within the connective tissue of the hilar portal (portal, hepatic artery, and biliary ducts) Increased fluid or dilated lymphatic vessels. About 80% of intrahepatic lymphatic drainage through the liver segment lymphatic drainage to the hilar area, hepatic portal tumor can be